DS2 Project: Drosophila suzukii "Developing effective, economically viable and sustainable management strategies"
Résumé
The DS2 project (2019-2022) evaluated several management methods for the pest Drosophila suzukii in cherry orchards and strawberry crops. A major study conducted on the trap plant Pyracantha coccinea showed strong potential in the laboratory but strong constraints during the first experiments in greenhouses. Management strategies based on the physical protection of cherry orchards by perimeter nets showed a potential in reducing phytosanitary interventions without causing side effects on crops. The development of the biological control method using exotic parasitoids was carried out through the identification of a species, Ganaspis cf. brasiliensis G1, very specific to the pest, promising trials in confined greenhouses and the finalization of an application file for the introduction of the parasitoid validated by the ministries. In addition, work to deepen our knowledge of the biology of the insect has led to a better understanding of the dynamics of fly populations and to complete the development of a model of egg-laying simulations that can be used as a decision-making tool to predict periods of risk on cherries.
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2024_Fevrier_Innovations Agronomiques_Vol 94_GB.pdf (496.3 Ko)
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